Identify the birds you see or hear with Merlin Bird ID. Free global bird guide with photos, sounds, maps, and more.

Detailed information for more than 600 North American bird species, including ID help, browse by shape and taxonomy, and deeper articles.

Jun 9, 2018 · Joel Cracraft, an evolutionary biologist and ornithologist at the American Museum of Natural History in New York recently headed a study to define bird species as any group that exhibited a unique set of straits, regardless of whether it could mate with any other ‘species’.

Apr 1, 2025 · eBird transforms your bird sightings into science and conservation. Plan trips, find birds, track your lists, explore range maps and bird migration—all free.

Among them are high-priority Global IBAs—places like New York City’s Jamaica Bay, areas within Alaska’s Arctic Slope, and coastal bird sanctuaries in Texas. Birds depend on a diverse range of habitats, and the threats that confront them are equally varied.

Birds are a group of warm-blooded vertebrates constituting the class Aves (Latin:), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

Feb 2, 2025 · Discover 21 birds that mate for life! Learn about nature's most loyal pairs, their unique bonds, and how these lifelong relationships thrive in the wild.

Important Bird and Biodiversity Areas (IBAs) are sites identified as being internationally significant for the conservation of birds and other biodiversity, based on a set of standardised, data-driven criteria.

To protect birds, we need to protect the places they live and travel through. Important Bird and Biodiversity Areas (IBAs) are the most important sites for the conservation of birds identified using standard scientific criteria.

Sea birds include Gulls, Puffins, Shearwaters and Kittiwakes. Sea birds have waterproof feathers and webbed feet. Most spend their time catching fish from the ocean with their sharp beaks. Some sea birds will nest in burrows such as the Puffin, while others nest on high cliff ledges where they will lay their eggs during breeding seasons.